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What is the probability that the product of two integers ( not necessarily different integers ) randomly selected from the numbers 1 through 20, inclusive , is odd ?

Created: 7 years ago | Updated: 2 months ago

Updated: 2 months ago

2/3

1/4

1/2

3/4

None of them

Bangladesh Bank Bangladesh Bank - Assistant Director - 2012 গণিত সম্ভাব্যতা (Probability)

Des

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প্রশ্ন: What is the probability that the product of two integers ( not necessarily different integers ) randomly selected from the numbers 1 through 20, inclusive , is odd ?

Total integers; 20
even = odd = 10
Since odd x odd = odd and since half the integers 1 to 20 are odd, the probability of selecting two odd integers is 1/2 x 1/2 = 1/4.

7 years ago

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Md Azizur Rahman

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What is the probability that the product of two integers ( not necessarily different integers ) randomly selected from the numbers 1 through 20, inclusive , is odd ?

প্রশ্ন: What is the probability that the product of two integers ( not necessarily different integers ) randomly selected from the numbers 1 through 20, inclusive , is odd ?

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